Page 548 of 652

548
5-2. Steps to take in an emergency
RX350/270_EE
■If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle immediately.
The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as soon as
possible.
■Front passenger detection sensor, passenger seat belt reminder and warning
buzzer
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash and the warning buzzer to sound
even if a passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily drops,
the electric power steering system warning light may come on and the warning
buzzer may sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks and tire inflation pressure changes caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light (after a few min-
utes).
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550
5-2. Steps to take in an emergency
RX350/270_EE
●If tire chains are used
●Vehicles with a full-size spare tire: If the spare tire is in a location subject to poor
radio wave signal reception
●Vehicles with a full-size spare tire: If a large metallic object which can interfere
with signal reception is put in the luggage compartment
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute
when the “ENGINE START STOP” switch is turned to IGNITION ON mode, have
it checked by any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features →P. 6 2 2 )
CAUTION
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
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Page 556 of 652
556
5-2. Steps to take in an emergency
RX350/270_EE
Indicates a malfunction in the cruise control system
or the radar cruise control system (If equipped)
Press the “ON-OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
(If equipped)
Indicates a malfunction in the automatic headlight
leveling system
Indicates a malfunction in:
• The SRS airbag system; or,
• The seat belt pretensioner system
Indicates a malfunction in:
•The ABS; or,
• The brake assist system
Indicates a malfunction in the EPS (Electric Power
Steering) system
Warning messageDetails
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Page 597 of 652

5
597
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery:
●Make sure each jumper cable is connected to the correct terminal and that it is
not unintentionally in contact with any other than the intended terminal.
●Do not allow the + and - clamps of the jumper cables to come into contact with
each other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the bat-
tery.
■Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observe the following precautions when han-
dling the battery:
●When working with the battery, always wear safety glasses and take care not to
allow any battery fluids (acid) to come into contact with skin, clothing or the vehi-
cle body.
●Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes, immedi-
ately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling the battery support, terminals, and other
battery-related parts.
●Do not allow children near the battery.
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in
the cooling fans or belt.
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600
5-2. Steps to take in an emergency
RX350/270_EE
CAUTION
■To prevent an accident or injury when inspecting under the hood of your vehicle
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartment may be very hot, causing serious
injuries such as burns.
●Keep hands and clothing (especially a tie, a scarf or a muffler) away from the fans
and belts. Failure to do so may cause the hands or clothing to be caught, resulting
in serious injury.
●Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too quickly
can cause damage to the engine.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additives.
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Page 609 of 652
609
6-1. Specifications
6
Vehicle specifications
RX350/270_EE
Engine
RX270
RX350
Fuel
Model1AR-FE
Ty p e4-cylinder in line, 4-cycle, gasoline
Bore and stroke90.0 × 105.0 mm (3.54 × 4.13 in.)
Displacement2672 cm3 (163.0 cu.in.)
Drive belt tensionAutomatic adjustment
Model2GR-FE
Ty p e6-cylinder V type, 4-cycle, gasoline
Bore and stroke94.0 × 83.0 mm (3.70 × 3.27 in.)
Displacement3456 cm3 (210.9 cu.in.)
Drive belt tensionAutomatic adjustment
Fuel type
EU area:
Unleaded gasoline conforming to European standard
EN228 only
Except EU area:
Unleaded gasoline only
Research octane number95 or higher
Fuel tank capacity
(Reference)72 L (19.0 gal., 15.8 Imp. gal.)
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Page 628 of 652
628
6-2. Customization
RX350/270_EE
Illumination
(
→P. 4 1 7 )
Wireless remote
control linked
exterior lights
when the sur-
rounding area is
dark
OnOff———O
Interior light
controlOnOffO—OO
Exterior light
controlOnOffO—OO
Shift lever lightsOnOff———O
Seat belt
reminder
(
→P. 5 4 6 )
Vehicle speed
linked seat belt
reminder buzzer
OnOff———O
ItemFunctionDefault
settingCustom-
ized
setting
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638
Alphabetical index
RX350/270_EE
Automatic light control system .........217
Automatic transmission
Automatic transmission ................... 186
If the shift lever cannot be
shifted from P .................................. 589
S mode ..................................................... 189
AUX port ................................................. 379
Auxiliary boxes .......................... 428, 446
Back door
Back door.................................................60
Wireless remote control ................... 53
Back-up lights
Replacing light bulbs......................... 516
Wattage................................................... 619
Battery
Checking ............................................... 479
If the vehicle has a discharged
battery ..................................................594
Preparing and checking before
winter.................................................... 296
Bluetooth
® audio* ................................ 361
Bluetooth® phone* .............................. 391
Bottle holders ......................................... 422
Brake
Emergency brake signal .................272
Fluid ........................................................... 616
Parking brake ........................................194
Brake assist................................................271
Break-in tips ............................................. 170Card key ..................................................... 26
Care
Exterior ................................................... 452
Interior..................................................... 455
Seat belts ............................................... 456
Cargo hooks .......................................... 446
CD changer
CD ............................................................ 330
MP3 disc ................................................337
WMA disc .............................................337
CD player ................................................ 330
Chains ....................................................... 296
Child restraint system
Baby seats, definition......................... 142
Baby seats, installation ...................... 152
Child seats, definition ........................ 142
Child seats, installation ..................... 152
Installing CRS with ISOFIX
rigid anchor ........................................ 157
Installing CRS with seat belts ........ 153
Installing CRS with top straps .......158
Junior seats, definition ....................... 142
Junior seats, installation .................... 152
B
C
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